Even on a tight schedule, East Side Gallery (Berlin Wall murals) earns the hours.
Allow 45 min–1 hr.
Walking the open-air gallery along the Spree, you get the longest intact Wall segment plus genuinely iconic political art for free, at your own pace. The catch: it runs along a busy road, the murals are heavily retouched (not 1990 originals), and crowds bottleneck at the famous panels.